Long-term Extinction

by Hailey Bowen
(USA)

The dinosaurs may have a lacking amount of vitamin d. which came from the sunlight. But alot of dust and particles blocked a maximum amount of the sun.

So the dinosaur's bones can no longer support the weight. But the smaller dinosaurs survived and evolved.

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starstarstarstarstar 		Thought out
by: Anonymous

A good thought out theory!

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